A fine selection of:

Tanzmaus

The Tanzmaus drum-computer is a further development of MFB 503. He offers five analogue percussion instruments (909 style) and two sample sections, who have access to 16 samples.

Furthermore you can program an alternative sample. A chase sequencer stores up to 64 patterns. You can chain up to 16 different patterns, A/B let you switch or alternate between A and B. Moreover you can program up to 16 different Flam algorithm. Step length is individual selectable for each instrument, polyrhythms are easy to get. 32 steps, 16th or 16th/8th triplets are the basic metrics and a 15 different shuffles can be set globally.